Title:
ELECTRONIC DEVICE COVER GLASS BLANK, METHOD FOR MANUFACTURING SAME, ELECTRONIC DEVICE COVER GLASS, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/081119
Kind Code:
A1
Abstract:
An electronic device cover glass blank (G) to be used as a substrate of an electronic device cover glass includes a pair of main surfaces (1A, 1B), and end surfaces that adjoin the pair of main surfaces (1A, 1B). The main surfaces are shaped so as to be asymmetric to each other in the thickness direction. The main surfaces (1A, 1B) are press-molded surfaces formed by direct pressing. A method for manufacturing the cover glass blank includes a molding step in which a pair of dies is used for press molding a mass of molten glass supplied from a molten glass supplying unit. The pressing surface of at least one of the pair of dies has a shape for forming the main surfaces and an interposed surface.
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Inventors:
HASHIMOTO KAZUAKI (JP)
ISONO HIDEKI (JP)
MURAKAMI AKIRA (JP)
ISONO HIDEKI (JP)
MURAKAMI AKIRA (JP)
Application Number:
PCT/JP2012/081124
Publication Date:
June 06, 2013
Filing Date:
November 30, 2012
Export Citation:
Assignee:
HOYA CORP (JP)
HASHIMOTO KAZUAKI (JP)
ISONO HIDEKI (JP)
MURAKAMI AKIRA (JP)
HASHIMOTO KAZUAKI (JP)
ISONO HIDEKI (JP)
MURAKAMI AKIRA (JP)
International Classes:
C03B11/00; C03C21/00
Foreign References:
| JPH08217467A | 1996-08-27 | |||
| JPH0513096B2 | 1993-02-19 | |||
| JPS645918A | 1989-01-10 | |||
| JP2006248044A | 2006-09-21 | |||
| JP2006188388A | 2006-07-20 | |||
| JP2005263574A | 2005-09-29 | |||
| JPH0637335U | 1994-05-17 | |||
| JPH08109030A | 1996-04-30 |
Attorney, Agent or Firm:
IKEDA, Noriyasu et al. (JP)
Noriyasu Ikeda (JP)
Noriyasu Ikeda (JP)
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Claims: